Enantioselective Total Synthesis of (−)-Curcuquinone via Regioselective Chromium-Mediated Benzannulation
作者:Ana Minatti、Karl Heinz Dötz
DOI:10.1021/jo0500939
日期:2005.4.1
A short and efficient, high-yielding enantioselective total synthesis of the marine natural product (−)-curcuquinone 1 is reported involving a regioselective [3 + 2 + 1]-benzannulation reaction as the key step. Additionally, this strategy allows the isolation of curcuhydroquinone monomethyl ether 9 as an intermediate of the benzannulation reaction and its subsequent further protection toward diversified
Asymmetric, Protecting-Group-Free Total Synthesis of (−)-Englerin A
作者:Qianghui Zhou、Xiaofei Chen、Dawei Ma
DOI:10.1002/anie.201000888
日期:2010.5.3
The golden touch: Totalsynthesis of natural (−)‐englerin A from (R)‐citronellal has been achieved using a gold‐catalyzed cyclization as the key step (see scheme). No protecting‐group manipulations were required in the synthetic sequence.